Trane Stealth™ Air-Cooled Chiller SCWF110

Check and tighten all set screws, bolts, locking collars and sheaves

Electrical Connections Inspection

Inspect, clean, and tighten all electrical connections

Visually inspect the entire unit casing for chips or corrosion

Remove rust or corrosion and repaint surfaces

Visually check for leaks in refrigerant piping

Fan, Motor, and Control Contacts Inspection

Inspect fan, motor, and control contacts

Fan Motor and Bearings Maintenance

Verify the fan motor is properly lubricated.

Lubricate fan bearings during unit operation.

Disconnect power before inspection.

Manually rotate the fan wheel to check for obstructions or interference.

Remove obstructions and debris from the fan housing.

Center the fan wheel if necessary.

Measure belt span between centers of sheaves (in inches)

Calculate deflection by dividing belt span by 64

Set the large 'O' ring of the tensioning gauge at 1/64 inch for each inch of belt span

Place the large end of the gauge at the center of the belt span and press down until the large 'O' ring is even with the top of the belt line

Place a straight edge across the sheaves as a reference point

WARNING: Hazardous Voltage w/Capacitors!

Disconnect all electric power, including remote disconnects, and discharge all motor start/run capacitors before servicing.

Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.

Verify with a CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged.

Fan Drive Inspection and Maintenance

Rotate the fan wheel to ensure it turns freely in the proper direction and is not rubbing on the fan housing or inlet.

Is the fan wheel centered properly?

Check the position of both shafts to ensure they operate parallel to each other.

Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing.

Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.

Verify with a CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged.

Don the appropriate personal protective equipment (PPE).

Drain Pan Inspection and Cleaning

Check for evidence of standing water or condensate overflow.